The belief that darker skin does not need sunscreen is both false and harmful, and the more common real problem is that mineral sunscreens leave a white cast that makes them unpleasant to use. The solution is not to skip sunscreen but to choose formulations that protect without the chalky residue, and there are more good options now than ever before.Melanin does offer some natural protection, roughly equivalent to an SPF of 13 in deeply pigmented skin, but that is not enough to prevent the hyperpigmentation and photoaging that sun exposure causes, and darker skin is especially prone to stubborn dark spots that sun worsens. Sunscreen is therefore essential across all skin tones, and the goal is to find one that actually gets used, because a cast-ridden sunscreen sits in the cabinet.The white cast comes from zinc oxide and titanium dioxide, which are naturally white pigments, and older mineral formulas left them visible on deeper skin. Newer solutions include micronized and nano-sized mineral particles that scatter less light, tinted mineral sunscreens that match a wider range of skin tones, and chemical sunscreens that spread completely clear,
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